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EP2153906B1 - Pulvérisateur et cartouche de support pour celui-ci - Google Patents

Pulvérisateur et cartouche de support pour celui-ci Download PDF

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Publication number
EP2153906B1
EP2153906B1 EP09165331.1A EP09165331A EP2153906B1 EP 2153906 B1 EP2153906 B1 EP 2153906B1 EP 09165331 A EP09165331 A EP 09165331A EP 2153906 B1 EP2153906 B1 EP 2153906B1
Authority
EP
European Patent Office
Prior art keywords
media
cartridge system
media cartridge
sprayer
specified
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09165331.1A
Other languages
German (de)
English (en)
Other versions
EP2153906A1 (fr
Inventor
Peter P. Seabase
Thomas K. Milo
Gordon R. Schorr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akron Device Technologies LLC
AKRON DEVICE Tech LLC
Original Assignee
Akron Device Technologies LLC
AKRON DEVICE Tech LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akron Device Technologies LLC, AKRON DEVICE Tech LLC filed Critical Akron Device Technologies LLC
Publication of EP2153906A1 publication Critical patent/EP2153906A1/fr
Application granted granted Critical
Publication of EP2153906B1 publication Critical patent/EP2153906B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2416—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/16—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
    • B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/63—Handgrips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B05B7/083—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter comprising rotatable spray shaping gas jet outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
    • B05B7/1245—A gas valve being opened before a liquid valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2435—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together by parallel conduits placed one inside the other
    • B05B7/2437—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together by parallel conduits placed one inside the other and a secondary stream of atomising fluid being brought together in the container or putting the carried fluid under pressure in the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2481—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device with a flexible container for liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/62—Arrangements for supporting spraying apparatus, e.g. suction cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet

Definitions

  • This invention relates to a sprayer and a media cartridge for a sprayer.
  • aerosol cans A wide variety of consumer products are frequently packaged in aerosol cans. These products include paints, hair spray, insecticides, herbicides, air fresheners, perfumes, fragrances, antimicrobial agents, cleaners, anti-sticking agents, and the like. Even though packaging these types of products in aerosol cans has been well accepted by consumers for decades, the continued use of aerosol cans for packaging consumer products is coming under greater and greater scrutiny. Most of the criticism relating to the use of aerosol cans originates from the thesis that aerosols are harmful to the environment. Additionally, the aerosol cans themselves are typically discarded after being used and generally end up in landfills as solid waste. In actual practice the steel of which aerosol cans are made is seldom recycled.
  • Aerosol cans also have the drawback of potentially exploding and causing personal injury and/or property damage if they are exposed to high temperatures during storage or transportation. This danger of explosion limits the manner in which products that are packaged in aerosol cans are transported, stored, and utilized.
  • Power sprayers that can be used to apply liquid compositions, such as paints, insecticides, lubricants, and the like to substrates are a viable alternative to aerosols.
  • power sprayers circumvent many of the problems associated with the use of aerosols. For instance, the use of power sprayers does not present the explosion hazard or the environmental concerns associated with aerosol products. However, power sprayers are frequently awkward to handle and difficult to clean after being used.
  • Power sprayers comprising media cartridges are disclosed in US 2006/076435 A1 , EP 1479448 A , WO 01/12336 A and EP 0593900 .
  • the invention provides a media cartridge system for a sprayer according to claim 1.
  • the invention also provides a sprayer according to claim 13.
  • Preferred features of the invention are set out in the dependent claims.
  • the subject invention therefore relates to a power sprayer that may be conveniently used by both professionals and amateurs.
  • This power sprayer may offer flexibility of movement because it can be battery operated. It may also be designed to eliminate the need for cleaning its spray nozzle after being used.
  • the media being sprayed may also be changed quickly and easily. For instance, paint colors may be changed quickly and repeatedly by simply changing the media cartridges that are adapted for simple attachment to the sprayer.
  • the media cartridges used in conjunction with the sprayers of this invention may also eliminate the inconvenience associated with refilling conventional power sprayers with a desired media. Even more importantly, it may eliminate the need for extensive clean-up and cleaning materials, such as solvents, rags, paper towels, etc., which is time-consuming and has a negative impact on the environment.
  • One of the most important benefits of embodiments of the present invention is the ability to deliver virtually any media, including waterborne systems, without compromising the spray quality and flexibility of a spray can.
  • the power sprayer of this invention may offer even better flexibility than conventional sprayers or spray cans by virtue of being capable of being used while in any orientation.
  • the present invention provides a media cartridge system for a sprayer comprising: (a) a media container, (b) a nozzle for dispensing the media, (c) a media shut-off means, (d) a primary media atomizing aperture in a configuration relative to the nozzle, (e) a movable media containment member within the media container, (f) a gas transfer interface, and (g) a power unit engagement means.
  • the nozzle is preferably a self-cleaning nozzle.
  • the subject invention further provides a sprayer which is comprised of (1) an electrical power source, (2) an electric motor, (3) a pump which is driven by the motor, (4) an output, (5) an electrical control switch, (6) a media cartridge air transfer interface, (7) a media cartridge engagement means, and (8) a media cartridge which is comprised of (a) a media container, (b) a self-cleaning nozzle, (c) a media shut-off means, (d) a primary media atomizing aperture in a configuration relative to the self-cleaning nozzle, (e) a movable media containment member within the media container, (f) a gas transfer interface, and (g) a power unit engagement means.
  • a sprayer which is comprised of (1) an electrical power source, (2) an electric motor, (3) a pump which is driven by the motor, (4) an output, (5) an electrical control switch, (6) a media cartridge air transfer interface, (7) a media cartridge engagement means, and (8) a media cartridge which is comprised of (a) a media
  • the present invention also provides a sprayer which is comprised of (1) a power unit which includes (a) an electrical power source, (b) an electric motor, (c) a pump which is driven by the motor, (d) an output control, and (e) an electrical control switch, (2) a nozzle unit which includes (a) a media cartridge air transfer interface, (b) a power unit engagement means, (c) a gas transfer interface, and (3) a media container wherein the media container includes (a) a media cartridge engagement means, (b) a movable media containment member within the media container, (c) a media container air transfer interface and (d) a media supply line interface.
  • the subject invention further provides a sprayer having a configuration which comprises a media outlet, a storage device/energy source (such as a capacitor, a fuel cell or a battery), at least one primary atomization outlet, and at least one spray pattern shaping/secondary outlet that minimizes power usage, wherein the primary outlet utilizes higher pressure than the secondary outlet, wherein the higher pressure utilized by the primary outlet is at least 2 times the pressure of the pressure utilized by the secondary outlet and wherein the primary atomization aperture is configured in a convex shape relative to the media aperture to provide enhanced self-cleaning as well as increased gas flow by entrainment of ambient gases through a coanda effect.
  • An embodiment of the invention provides a media cartridge for a sprayer, the media cartridge comprising: a container for a media, a movable media containment member arranged within the media container for pressurizing the media, a nozzle for dispensing the media, a primary media atomizing aperture arranged in the vicinity of the nozzle for providing a stream of pressurized gas for atomizing the media, a gas transfer interface for receiving a pressurized gas from a power unit of the sprayer, and a power unit engagement means for mechanically coupling the cartridge to the power unit, wherein the cartridge is arranged such that a compressed gas received at the gas transfer interface is able to move the media containment member to apply a pressure to the media and to provide a stream of pressurized gas at the primary media atomizing aperture for atomizing the media.
  • the nozzle is preferably a self-cleaning nozzle, and the cartridge preferably further comprises a media shut-off means.
  • the sprayer system of the invention may deliver and shape a higher level of media at the same level of power consumption as compared to conventional spraying technology. This may be accomplished by separating the need for high energy atomization air flow from the lower pressure needed to attain a desired spray pattern.
  • FIG. 1 depicts one typical design for such a power sprayer 55.
  • the power sprayer depicted in Figure 1 includes a media cartridge 1 which attaches to the top of a power unit 2.
  • This sprayer includes a power unit handle 3 which connects the power unit 2 to the media cartridge 1.
  • the media cartridge includes a nozzle 4 which extends forwardly from the media cartridge 1.
  • Figure 2 depicts the power sprayer of Figure 1 wherein the media cartridge 1 is disengaged from the power unit 2.
  • the media cartridge can be affixed to the power unit via the power unit mounting bracket 20 to which the power unit engagement means 19 attaches.
  • this attachment is effectuated by the interlocking edges which taper in one direction to engage the media cartridge to the power unit at the desired orientation.
  • the power unit gas transfer interface 21 which is a port that aligns with a media cartridge gas transfer interface 15 (as shown in Figure 3 ).
  • FIG 3 is a cross-sectional view of the power sprayer of Figure 1 showing the media cartridge affixed to the power unit.
  • the media cartridge includes a media container 6 which is filled with media 37.
  • media 37 In cases where the media is a liquid it is highly preferred from the movable media containment member to be essentially free of gases.
  • the media is contained in the media container 6 with a movable media containment member 5.
  • the media container also includes an agitation sphere 7 for preparing the media for application to a substrate by agitating the media to attain a homogeneous mixture.
  • the media cartridge includes a nozzle 4 through which the media passes while being sprayed.
  • the media cartridge also includes a media cartridge gas transfer interface 15 which mates with the power unit gas transfer interface 21 to provide a pressurized gas such as air which provides force to compress the movable media containment member 5 to force the media 37 there from and ultimately out through nozzle 4 into a desired spray pattern.
  • a pressurized gas such as air which provides force to compress the movable media containment member 5 to force the media 37 there from and ultimately out through nozzle 4 into a desired spray pattern.
  • the gas from the power unit is compressed by pump 12 which is typically powered by an electric motor 10 having an appropriate gear train 11, if necessary.
  • the electric motor is typically powered with DC batteries 9 which provide DC current to the electric motor.
  • This supply of electricity optimally is through an output control 13 which is capable of providing the electric motor with constant voltage to attain consistent motor speed (constant revolutions per minute).
  • the output control 13 can be designed to provide variable output motor speed to attain desired spray patterns or can be designed to provide controllable output.
  • the output of the motor can be automatically set by the device to attain a desirable spray pattern predicated upon the distance of the spray nozzle from a substrate surface as could be automatically determined utilizing an infrared, radar, or ultrasonic distance measurement system.
  • the operation of the unit can be controlled via switch 22 which toggles between an open and closed position via trigger 8 to provide power to the unit as desired.
  • the switch can be a variable control which will allow the motor to increase or decrease in speed depending upon the degree to which the trigger is pulled.
  • the variable control can be a rheostat, a pot, or any other device capable or providing a variable signal to the output control 13.
  • Figure 4 depicts a media cartridge having a nozzle of convex shape.
  • This device shows an electro-mechanical vibrator 16 for agitating the media to attain a homogeneous mixture.
  • Figure 5 also depicts such a media cartridge wherein an acoustical plate 17 or an electromagnetic device 18 is utilized to agitate the media wherein such agitation can optionally be carried out with the aid of an agitation sphere 7.
  • a convex nozzle shape provides enhanced resistance to air nozzle clogging.
  • Figure 6 depicts another embodiment for a spray gun 55 in accordance with this invention.
  • This design includes a tip guard 24 which protects the tip of the nozzle from damage which could occur during mishaps such as dropping the spray gun which would adversely affect the quality of the spray.
  • inlet air 25 is drawn in by the power unit 2 by a secondary air blower 26.
  • the inlet air acts to cool the electric motor 10 and the pump 12.
  • the compressed air exiting the secondary air blower moves through the power unit assembly and enters into the media cartridge as depicted in Figure 7 .
  • Figure 6 shows a trigger 8 which is integrated with a media flow control means 23.
  • the media flow control means can be a valve that limits the gas (air) pressure in the media container 6 to moderate the amount of pressure applied to the bladder 36 in the embodiment of the invention.
  • the media flow control means 23 can also limit the travel of the trigger to a desired stop point which also limits the travel of the needle 29 to limit the amount of atomized media 46 spray (as shown in Figure 10 and Figure 11 ).
  • the trigger is used to control the ratio of media flow to gas (air) flow.
  • the trigger 8 can further be used to operate the control stitch 22 to activate the output control 13 and to attain the desired electric motor 10 operating speed (rpm output) desired.
  • the trigger 8 has a flexible element that engages the trigger/nozzle engagement member 44.
  • the trigger/nozzle engagement member 44 is phased to allow the control switch to activate gas flow before media flow.
  • the media 37 flow can be terminated before gas flow (primary atomization air 48 flow and secondary air 47 flow) is terminated to enhance the self-cleaning feature of the nozzle 4.
  • the secondary air flows through the nozzle of the media cartridge and is the source of the secondary air supply 35 can change the desired spray pattern and the secondary air supply 35 can result in augmented secondary air 47 through the coanda effect (as illustrated in Figure 10 and Figure 11 ).
  • the pump provides pressurized air which flows through a power unit gas transfer line 14 through the power unit gas transfer interface 21 (as shown in Figure 7 ) and into the media cartridge gas transfer interface 15 and through the nozzle as primary atomizing air 48 and ultimately through the primary air aperture 27 of the nozzle.
  • the primary atomizing air 48 and the secondary air 47 converge to provide an atomized media 46 as shown in Figure 10 and Figure 11 .
  • Figure 7 is a cross-sectional view of the power-sprayer of Figure 6 highlighting the internal components of the nozzle portion of the media cartridge in a "closed position" depicting the typical resting position of the mechanical interference 30 when the nozzle 4 is not spraying atomized media.
  • the mechanical interference 30 closes the nozzle 4 by moving forward to form a seal by contact with the mechanical interference seat 31.
  • the media supply valve needle 53 is not penetrating through the diaphragm 34 to allow media 37 to flow from the moveable media containment member 5 to the nozzle 4.
  • the power unit identification means 58 can be a mechanical or electrical device that identifies the cartridge and optionally its contents. It typically also adjusts output parameters to attain a desired result. These parameters can include but are not limited to a fine, medium or heavy spray output and coverage or quality. This is accomplished through control by varying the output of the primary and secondary air supplies, motor, pump and/or media output.
  • Figure 9 is a cross-sectional view of the power-sprayer of Figure 6 highlighting the internal components of the nozzle portion of the media cartridge in an "open position" depicting the position of the mechanical interference 30 when the nozzle 4 is spraying atomized media.
  • the mechanical interference 30 is pulled back to open the nozzle 4 by to allow media to flow through the media aperture 28.
  • the media shut off needle is pulled away from the mechanical interference seat 31 to allow media 37 to flow around it and out of the primary aperture 27.
  • the media supply valve needle 53 penetrates through the diaphragm 34 to allow media 37 to flow from the media bladder 36 to the nozzle 4.
  • Figure 9 also shows the flow pattern of the atomized spray media 46, the primary atomizing air 48, and secondary air 47.
  • Figure 10 is a cross-sectional view of the power-sprayer of Figure 6 highlighting the internal components of the nozzle portion of the media cartridge in an open spraying mode depicting an oval spray pattern that can be attained by appropriate positioning of the tip guard 24.
  • Figure 11 is a cross-sectional view of the power-sprayer highlighting the internal components of the nozzle portion of the media cartridge in an open spraying mode depicting a round spray pattern that can be attained by positioning the tip guard 24 in a different orientation.
  • the atomized media 46 can be sprayed into a variable and desired spray pattern 45. It should be noted that the gas flow acts to both cause media atomization and media flow.
  • Media flow is caused by a force differential which can be mechanical, vacuum, and/or positive pressure.
  • a force differential can be mechanical, vacuum, and/or positive pressure.
  • a pressure can be applied upon the moveable media containment member 5 to attain an adequate pressure differential to cause the desired level of media flow.
  • Figure 10 also depicts that secondary air pattern shaping outlet ports 40 cause a convergence of the secondary air supply 35 onto the primary atomization air 48.
  • the pattern shaping air 49 acts in concert with the secondary air 47 to provide the desired spray pattern 45.
  • FIG 12 is a schematic view of another embodiment of the power sprayer of this invention.
  • the power sprayer 55 is affixed to a folding power unit handle 3.
  • the power sprayer 55 can be affixed to a wand 50 (an extension handle) having a handle 51 and a wand trigger 52 to facilitate spraying objects that would ordinarily be difficult to reach.
  • the wand could be affixed to the power sprayer 50 to spray substrates that ordinarily could not be reached without using a ladder.
  • Figure 14 is a schematic view that depicts another embodiment of the invention in the form of a ward sprayer 56 wherein an optional pivot arm 53 with a wheel 54 is attached to the power sprayer 55.
  • This embodiment of the invention can be conveniently be used to spray lines on a highway, parking lot, or field.

Landscapes

  • Nozzles (AREA)

Claims (14)

  1. Système de cartouche de média (1) à utiliser avec une unité d'alimentation (2) pour former un vaporisateur, le système de cartouche de média (1) comprenant : un contenant de média (6) et un moyen de solidarisation d'unité d'alimentation (19) destiné à attacher le système de cartouche de média (1) à l'unité d'alimentation (2),
    dans lequel le système de cartouche de média (1) est caractérisé en ce qu'il comprend en outre une buse auto-nettoyante (4), un moyen d'obturation de média (29) destiné à empêcher un écoulement de média par la buse (4), une ouverture d'atomisation de média principale (27) dans une configuration par rapport à la buse auto-nettoyante (4) pour l'écoulement d'air d'atomisation principale, un élément de confinement de média amovible (5) à l'intérieur du contenant de média (6) destiné à forcer le média à sortir de celui-ci, et une interface de transfert de gaz (15) destinée à accoupler une interface de transfert de gaz de l'unité d'alimentation.
  2. Système de cartouche de média pour un vaporisateur selon la revendication 1, caractérisé en ce que le moyen d'obturation de média inclut une interférence mécanique (30) comprenant une buse auto-nettoyante.
  3. Système de cartouche de média pour un vaporisateur selon la revendication 1 ou 2, caractérisé en ce que l'élément de confinement de média amovible (5) est un réservoir flexible.
  4. Système de cartouche de média pour un vaporisateur selon la revendication 1, 2 ou 3, caractérisé en ce que l'élément de confinement de média amovible (5) est un soufflet.
  5. Système de cartouche de média selon l'une quelconque des revendications précédentes, caractérisé en ce que l'ouverture d'atomisation principale (27) est configurée pour amener l'écoulement d'un gaz d'atomisation principale à converger pour fournir une zone de très forte turbulence dans la voie d'écoulement du média.
  6. Système de cartouche de média selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de confinement amovible (5) est adapté pour fournir une voie d'écoulement en réponse à un différentiel de force procuré par une pression de gaz.
  7. Système de cartouche de média selon la revendication 6, caractérisé en ce que le différentiel de force est appliqué directement sur l'élément de confinement de média amovible (5).
  8. Système de cartouche de média selon la revendication 6, caractérisé en ce que le différentiel de force est appliqué indirectement via un élément de confinement de fluide amovible supplémentaire (5).
  9. Système de cartouche de média selon l'une quelconque des revendications précédentes, caractérisé en ce que au moins deux éléments de confinement de média amovibles sont présents dans le contenant de média (6).
  10. Système de cartouche de média selon l'une quelconque des revendications précédentes, caractérisé en ce que l'interface de transfert de gaz (15) fournit l'ouverture d'atomisation principale (27).
  11. Système de cartouche de média selon l'une quelconque des revendications précédentes, caractérisé en ce que l'interface de transfert de gaz (15) fournit en outre un gaz secondaire amélioré.
  12. Système de cartouche de média selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de cartouche de média inclut en outre une interface électronique d'unité d'alimentation (58) pour l'identification de cartouche et l'ajustement de paramètres.
  13. Vaporisateur qui est caractérisé en ce qu'il est constitué d'un système de cartouche de média (1) selon l'une quelconque des revendications précédentes et d'une unité d'alimentation, l'unité d'alimentation comprenant : une source d'alimentation électrique (9), un moteur électrique (10) qui est entraîné par la source d'alimentation électrique (9), une pompe à gaz (12) qui est entraînée par le moteur (10), un interrupteur de commande électrique (22), une interface de transfert de gaz (21) destinée à accoupler l'interface de transfert de gaz du système de cartouche de média (1), et un moyen de solidarisation de la cartouche de média (21) destiné à attacher l'unité d'alimentation (2) au système de cartouche de média (1).
  14. Vaporisateur selon la revendication 13, qui est caractérisé en ce que le vaporisateur comprend en outre une commande de sortie constante (13) dans laquelle la commande de sortie constante fournit de l'électricité au moteur électrique.
EP09165331.1A 2008-07-14 2009-07-13 Pulvérisateur et cartouche de support pour celui-ci Not-in-force EP2153906B1 (fr)

Applications Claiming Priority (1)

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US8040608P 2008-07-14 2008-07-14

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EP2153906A1 EP2153906A1 (fr) 2010-02-17
EP2153906B1 true EP2153906B1 (fr) 2017-01-25

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Also Published As

Publication number Publication date
US8584971B2 (en) 2013-11-19
US20100006671A1 (en) 2010-01-14
EP2153906A1 (fr) 2010-02-17
US20120273588A1 (en) 2012-11-01
US8267331B2 (en) 2012-09-18

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